2009 - Volume #33, Issue #1, Page #36[ Sample Stories From This Issue | List of All Stories In This Issue | Print this story | Read this issue]
Is Your GM Diesel Hard To Start?If you've got a GMC or Chevy Duramax diesel pickup that tends to stall or is difficult to start, chances are the fuel filter adapter is defective. Replacing it with a new one can cost $450 to $750 - and that doesn't include the cost of a diagnostic analysis. Instead, you can save money by having the filter adapter completely rebuilt, says Dale Grose, Dmaxwrenchkit.com, Wenatchee, Wash.
His company rebuilds fuel filter adapters for Duramax 6.6-liter diesel engines found on 2001 to 2008 Chevy 2500HD, 3500HD, and C4500 Topkick and Kodiak Duramax models.
"The problem is the fuel filter adapters on these engines were badly engineered, and they all fail eventually," says Grose. "The filter adapter begins to leak air which results in a compromised fuel delivery system. Part of the problem is that GM put their filter adapter on the market before ultra low sulfur diesel fuel came on the market, not realizing that the new fuel can cause the adapter to fail.
"Also, to protect the injectors, GM changed the fuel filter to a dual element filter from a single element, which unfortunately increased fuel restriction. The company has never solved the problem so any replacement part you buy, whether it's from a dealer or a junk yard, will eventually fail because it will have the same design problems.
"I have five years of experience with Duramax diesels and 15 years of experience with diesel and biodiesel fuel systems, so I know exactly what the problems are with these filter adapters and how to fix them."
Grose charges $250 to have the fuel filter adapter rebuilt and provides a limited lifetime warranty.
Contact: FARM SHOW Followup, Dale Grose, Dmaxwrenchkit.com, P.O. Box 1801, Wenatchee, Wash. 98801 (ph 425 216-9082; dale@Dmaxwrenchkit.com; www.Dmax wrenchkit.com).
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